package base.Number_study;

public class TestDemo1 {
    public static void main(String[] args) {
        int i = 5;
         
        Integer it = new Integer(i);
    
        //Integer是Number的子类，所以打印true
        System.out.println(it instanceof Number);
        
        //自动转换就叫装箱
        Integer it2 = i;
        //自动转换就叫拆箱
        int i3 = it;
        System.out.println(Integer.MAX_VALUE);
        System.out.println(Integer.MIN_VALUE);
        
    }
}
